Analysis and Optimization of Metal to Composite Joints for Marine Structures


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Composite to metal joints as important components of marine structures are gradually found in the marine industry. The purpose of this study is to investigate mechanical performance and optimization method of the composite sandwich to steel joints. The main emphasis was placed on the mechanical properties of a hybrid joint between a sandwich glass fibre reinforced plastic superstructure and a steel main hull. Based on the experiments of a base joint, a new finite element method was used to analyze a series of joints. The optimized joint was presented due to reducing weight and enhancing the mechanical performance. The numerical predictions of the base hybrid joint showed a very good correlation with the experiment results, which validated the reliability of the new finite element method. The strength of the optimized joint was also evaluated by finite element method. The result is similar to the base joint. And there is no additional stress concentration in weak parts. The optimized joint has 30% lower weight than the base joint, and the stress is only about 5% ~ 56% of the base one. The results of the present work imply that the change of geometric parameter is an effective method to improve the performance of the metal to composite joint.



Edited by:

X.D. Xu, Bin Li, Q.M. Lu, X.Y. Yan and J.L. Li




X. W. Li et al., "Analysis and Optimization of Metal to Composite Joints for Marine Structures", Applied Mechanics and Materials, Vols. 556-562, pp. 91-95, 2014

Online since:

May 2014




* - Corresponding Author

[1] HaymanA B, Echtermeyer AT, McGeorge D. Use of composites in naval ships. Warship 2001 future surface warships. 20–21. London: Royal Institution of Naval Architects. (2001).

[2] Mouritz AP, Gellert E, Burchill P, Challis K. Review of advanced composite structures for naval ships and submarines. Composite Structures. 2001, 53(1): 21–41.

DOI: 10.1016/s0263-8223(00)00175-6

[3] Hart-Smith LJ. Design of adhesively bonded joints. In: Matthews FL, editor. Joining fibre reinforced plastics. Barking, Essex: Elsevier. 1986, p.271–311.

[4] Hildebrand, M. Efficient solutions for joints between large FRP-sandwich and metal structures, Proceedings of the 19th SAMPE Europe International Conference, Paris, France, (1998).

[5] Wright, P. N. H., Wu, Y. andGibson, A. G. Fibre reinforced composite-steel connections for transverse ship bulkheads, Plast., Rubb. Composites: Part A. 2000, 29(10), p.549–557.

DOI: 10.1179/146580100101540761

[6] Clifford, S. M., Manger, C. I. C. and Clyne, T. W. Characterisation of a glass-fibre reinforced vinylester to steel joint for use between a naval GRP superstructure and a steel hull, Composite Structures, 2002, 57(1–4), p.59–66.

DOI: 10.1016/s0263-8223(02)00063-6

[7] Hart-Smith LJ. Adhesive bonding of composite structures—progress to date and some remaining challenges. Journal of Composite Technology Research, 2002, 24(3): 133–53.

DOI: 10.1520/ctr10566j

[8] Adams RD, Atkins RW, Harris JA, Kinloch AJ. Stress analysis and failure properties of carbon fibre reinforced plastic/steel double lap joints. Journal of Adhesion. 1986, 20: 29–53.

DOI: 10.1080/00218468608073238

[9] Adams RD. Strength predictions for lap joints, especially with composite adherends. A review. Journal of Adhesion. 1989, 30: 219–42.

DOI: 10.1080/00218468908048207

[10] Kapadia, A. Weight and cost comparison of base design structure to a given steel structure, Technical Report VT-2. 3-C3-IP3. 0, EUCLID RTP 3. 21, (2002).

[11] S.M. Clifford, C.I.C. Characterisation of a glass-fibre reinforced vinylester to steel joint for use between a naval GRP superstructure and a steel hull. Composite Structures. 2002, 57, 59–66.

DOI: 10.1016/s0263-8223(02)00063-6

[12] Theotokoglou EE, Moan TJ. Experimental and numerical study of composite Tee-joints. Journal of Composite Material, 1996, 30, p.190–209.

DOI: 10.1177/002199839603000203

[13] Helmuth Toftegaard, Aage Lystrup. Design and test of lightweight sandwich T-joint for naval ships. Composites: Part A. 2005, 36, p.1055–1065.

DOI: 10.1016/j.compositesa.2004.10.031

[14] Information on http: /research. dnv. com/euclid_rtp3. 21.

[15] Crystic. Composites Handbook, Scott Bader Company Ltd., (2003).

[16] Smith, C.S. Response of hybrid GRP/steel superstructures to blast loading theory and experiment, Advances in Marine Structures-2, UK, Elsevier Applied Science. 1991, pp.392-415.

[17] Stephen William Boyd. Strength and durability of steel to composite joints for marine application. Doctor thesis: University of Southampton. (2006).

[18] Konstantions N. Anyfantis. Analysis and design of composite to metal adhesively bonded joints. Doctor thesis: National technical university of Athens. (2012).

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